Crotonic acid
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Category：Pharmaceutical Materials Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
CAS Number: 3724-65-0 (alternatively listed as 107-93-7)
Molecular Formula: C4H6O2
Molecular Weight: 86.09
Appearance: White crystalline solid or powder
Melting Point: 70-73°C
Boiling Point: 180-199°C
Usage: Used as an organic chemical intermediate in coatings, copolymers, pharmaceuticals, and pesticides.
| Attribute | Details |
|---|---|
| Chemical Name | Crotonic Acid |
| Synonyms | 2-Butenoic acid, (E)-; trans-2-Butenoic acid; β-Methylacrylic acid; 1-Carboxypropene; (E)-But-2-enoic acid |
| CAS Number | 107-93-7 |
| Molecular Formula | C4H6O2 |
| Molecular Weight | 86.09 g/mol |
| Appearance | White to pale yellow crystals or powder |
| Physical Properties | Melting Point: 70-73°C; Boiling Point: 185-199°C; Density: 1.027 g/cm³; Flash Point: 88°C; Refractive Index: 1.4249 (at 20°C); Vapor Pressure: 0.5±0.7 mmHg at 25°C |
| Solubility | Soluble in water, ethanol, ether, toluene, and acetone |
| Chemical Properties | Forms esters and salts, undergoes typical carboxylic acid reactions such as decarboxylation, esterification, and reduction to alcohols. |
| Uses | Used in the manufacture of synthetic resins, plasticizers, and pharmaceuticals. Also employed as an intermediate in organic synthesis. |
| Safety Information | Corrosive and irritating to eyes, skin, and respiratory tract. May cause severe burns and respiratory problems. Handle with caution, avoiding contact with incompatible materials. Store in a cool, dry place, away from heat and sources of ignition. Wear appropriate protective clothing, gloves, and eye/face protection during handling. |
| Hazard Statements | R34: Causes burns; R36/37/38: Irritating to eyes, respiratory system, and skin. |
| Precautionary Statements | S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; S36/37/39: Wear suitable protective clothing, gloves, and eye/face protection; S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). |
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